Carbon-removing-liquid injector



June 3, 1.930. c. w. MGKINLEY 1,751,931

CARBON REMOVNG LIQUID INJECTOR Filed July 9, 1928 $511 d 4W @Je sa M' lSrl-migo ap lied thereto.

Patented June l3b, 1930 U-NITED STATI-:s v'PA'raN'r oFFicE CHARLES w.

HCHINLEY, or rLIN'r, MICHIGAN, AssIGNon 'ro A C seam: PLUG Co PANLOI'FLINT, MICHIGAN, A CoMrnNY or MICHIGAN CARBON-REMOVING-LIQUIDApplication led July 9, V1928. Serial No. 291,371.

This invention relates to internal combustion engines, and moreparticularly to a device for attachment on the intake manifold of lheengine for the purpose of yintroducin a carbon 'softening or dissolvingcompoun into the en 'ne cylinders.

It is an o ject ofthe invention to provide a device which will be simplein des1gn.and economical in manufacture, and which may be readilyapplied at small cost on existing engines without necessitating thedrillin .and tappin of-holes for attachment, an' which may e left on-thecar as a permanent engine accessory. The device comprises a containerfor thedecarbonizing liquid,of a

ca acity suiiicient for one treatment, having a ller opening that isnormally covered by a closure plate to preclude the entranceof dirt whenthe device is not in use, and an 2oA outlet valve controlling the 'iowAof liquid into the intake manifold, thef valve being yieldingl held onits seat by a tension spring w 'ch also bears-against the closure plate,resulting in a certain amount of fric-, tionalresistance to the movementof the closure plate. Y

= Avpreferred, but not necessarily the only embodiment of the invention,is .Ilustrated in the accompanying drawing in which Figure 1 isa sideelevation of an internal combustion engine with the present invention iure 2 lis an elevation of the device forming the present subject`matter.

Figure 3 is a vertical sectional view thereof and .ligure 4 is atop-plan view with parts broken away. Referring to the drawings, thenumeral 1 indicates an internal combustion engine hav- 'ing a carburetor2 and an intakemanifold 3 1eading to the combustion chambers of theengine. -Most engines now on the market have intake manifolds th areprovided with fittings threaded therein for the atl tachment of asuction conduit leading to either a'suction operated winds 'eld wiperorja vacuum operated fuel feed ystem. 'It is proposedv in thepresentjinstance to substif tutelfor the standard screw threadedfitting,

a T-tting 4 to one leg of which the suction vacuum tank is connected,andl to the other lelg of which is attached the device with w ich thepresent invention is concerned.

This device consists-of a receptacle'or container 6, preferably formedfromA sheet metal, having an opening in'the bottom wall 7 thereof, throued projection o a hollow fitting 8, the marginal edge portions at theopening in the wall 7 beingclamped between the fitting 8 and a fitting 9screw threaded thereon and having an extension 10 for engagement withvthe T-fitting 4.' Seated against a shoulder in the hollow tting 8 isavalve head 11 carried by the stem 12 having at its upper end aknob 13.The stem 12 extends through a cap 14 secured over the top'of thereceptacle 6 and a plate 15, the cap and plate having correspondingopenings -16 yand 17 respectively which ma be brought into alignmentupon rece liquld. A tongue or ear 18 is preferably struck up fromrotation 'of the plate about the stem 12. Surrounding the stem andinterposed between the knob 13 and plate 15 is a coiled tension spring19 which tends to yieldinglyl hold the valve on its -seat and at thesame time bears against the plate, pressing the plate toward the cap 14and serving therey to hold the plate against movement relative to thecap'.

At such regular intervals, when it is deslred to in]ect thedecarbonizing liquid into` the engine cylinders, the container' is rstfilled with the duid and the engine started. When the engine is runningat a fair rate of speed the carburetor throttle. valve is allowed-to'suddenl snap shut and at the samel instance thekno 13 is depressed,whereby the vacuum -present in' the manifoldv sucks the contents of-thecontainer into the manifold and distributes it to the several cylinders.The high vacuum'produces a spray h which extends the threadrotation Iothe plate 18, to permit the tacle to be filled with decarbonizing vvline 5 leading to the windshield wiper or the plate 15 to facilitatethe which can be easily and uniforml distributed to the cylinders.l Assoon as t e engine combustion chambers become filled with thedecarbonizing Huid the engine will cease-to operate, and 1f the engineis allowed to stand idle for a certain period long enough to allow thefluid to attack'and dissolve or soften thecarbon, the loosened carbonwill be rblown out through the exhaust when the engine vis againstarted.

I claim: l

1. AA .decarboniz'er of the character. de# scribed, including a fluidcontainer adapted for attachment with an engine intake passage, aclosure cap for` the'top of the container, having a filler openingtherein, a plate movablerelative to said cap to cover or uncover saidfiller opening, a valve manually movable in one direction to openposition to allow the flow of decarbonizing fluid from the containerinto the intake passage under `influence of suct1on 1n the passage,.

and having a stem projecting thru the closure cap, and a tension springbetween the end of the'valve stem and said plate holding the valvenormally on its seat against engine suction and resisting movement ofsaid plate. 2. A decarbonizer of the class described, including a fluidcontainer, adapted for attachment with an engine intake passageway, andhaving a ller opening therein, a rotary closure plate adapted uponmovement to .cover or uncover said opening, a valve controlling luidflow from-the container into the intake passage under influence ofsuction in the passage and having a st em projecting thru the plate andforming a pivotal .mounting therefor, a knob on the end of the l stem,the depression ,of 1 which unseats said valve, and a tension springsurrounding the valve stem and bearlng at opposite ends.

against the knob and said plate and serving to normally hold the valveclosed and the plate against movement.

In testimony whereof I aix my si nature. i CHARLES W. MQKIN EY.

